Wrench.



H. W. MELDRUM.

WRENCH.

APPLICATION II'LED FEB. 11, 1911.

1,015,970, I I Patnted Jan.30,1912.

WITNESSES [NVENTOR M.WJ\(I.\dPum By V HARRY W. MELDRUM, OF EAST ST.LOUIS, ILLINOIS.

WRENCH.

Specification of Letters Patent.

Patented Jan. 30, 1912.

Application filed February 11, 1911. Serial No. 608.011.

To all whom 2'25 may concern:

Be it known that I, HARRY W. MELDR M, a citizen of the United States,residing at East St. Louis, in the county of St. Clair and State ofIllinois, have invented certain new and useful Improvements inlVrenches; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in wrenches and moreparticularly to a combination wrench designed for all the variouspurposes usually subserved by a pipe and nut Wrench, as separatelyconstructed, and my invention consists in certain novel featuresofconstruction and combination of parts, the preferred form whereof willbe hereinafter clearly set forth and pointed out in the claim.

The object of my invention, among others, is to provide a combinationwrench suitable for use upon nuts of various size and also for reliablyefficient action upon pipes of varying diameter.

In the accompanying drawings, Figure 1 is a side elevation of my wrenchcomplete, while, Fig. 2 shows a longitudinal sectional view of themovable jaw on a slightly enlarged scale from that presented in Fig. 1.

Referring by numerals to the various details of my invention andcooperating accessories, 1 indicates the handle proper having thepreferably integral head or fixed jaw 2, one end of which is adapted foraction upon nuts, while the other end is provided with a plurality ofteeth or corrugations 3 for action upon pipes, rods, and the like.Designed to cooperate with the fixed jaw or head, is a movable jaw 4having a central opening of proper size to loosely move upon the handle1, the latter being provided upon one edge with a plurality of ratchetteeth 5 designed to cooperate with the ratchet teeth upon a movable oradjustable wedge member 6, while the outer edge of said wedge member istapered to fit a corresponding seat within the jaw 4:, as clearly shownin Fig. 2. The adjustable wedge member 6 is held within its seat, thusprovided in the movable jaw, so that it may not casually drop out of itsoperative position, by means of a pin 7 permanently secured thereto andextending through an opening or slot 8 in a contiguous part of themovable jaw, as shown in Fig. 2, the said pin having a suitable handleor terminal 9, as clearly shown. It will be obvious that the officeperformed by the wedge member 6 is to lock the movable jaw at anydesired point upon the handle member 1. The opposite end of the movablejaw 4 is also provided with a slotted opening 10 and seated within saidopening is a spring member 11 anchored in position in any preferred way,as by a screw 12.

To the operating face of the movable jaw, I mount the ratchet facedmember 13 designed to cooperate with the ratchet face 3 of the fixedjaw, said member 13 being mounted upon the free end of the spring member11, either permanently or removably, as by the anchoring screw 14, andit is therefore obvious that the space or opening 10 affords alimitation of movement for the said member 13, thus permitting saidmember 13 to accommodate itself to the strain placed thereon incident tothe use of the pipe wrench.

As indicated by Fig. 1 of the drawings, it is obvious that the ratchetfaced member 13 is so mounted that it may move outward incident toapplying the wrench to a pipe or bolt,'but will be normally drawn inwardby the action of the spring 11. It is further obvious that the saidmember 13 is limited in its outer movement by the extent of the opening10.

It is thought from the foregoing, that the operation or manner of usingmy improved wrench will be clearly apparent, though it may be statedthat the movable jaw may be readily moved upon the handle portion bywithdrawing the wedge member 6, and when the movable jaw has thus beenadjusted in the desired position, said wedge member is forced home inits seat, thereby causing the ratchet teeth thereon to cooperate withthe ratchet teeth 5 upon the handle.

It will thus be seen that I have produced a wrench of reliableefliciency designed for the double purpose of operation upon nuts,square rods and the like and also upon pipes, bolts, etc.

What I claim is A wrench comprising a handle portion, a fixed jaw on thehandle and having a toothed face, a movable jaw slidable thereonprovided with a longitudinal recess substantially parallel therewith, anauxiliary toothed member comprising a Wedge shaped block seated looselyon the face of the mov- In testimony whereof I have signed my able jawopposite the toothed face of the name to this specification in thepresence fixed jaw, and a spring secured to the inner of twosubscrlb'ing Witnesses.

face of the auxiliary toothed member, ex- HARRY W. MELDRUM. 5 tendingthrough said longitudinal slot, and Vitnesses:

attached to the outer surface of the movable E. J. EGGMANN,

j aw. E. W. EGGMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C."

